12 Einträge gefunden

1. Revisiting the connection between magnetic activity, rotation period, and convective turnover time for main-sequence stars

   1. Mittag, M.
   2. Schmitt, Jürgen
   3. Schröder, K.-P.

   2018 - Forschungsinformationssystem der UHH - frei zugänglich
2. Stellar rotation periods determined from simultaneously measured Ca II H&K and Ca II IRT lines

   1. Mittag, M.
   2. Hempelmann, A.
   3. Schmitt, Jürgen
   4. Fuhrmeister, B.
   5. González-Pérez, J.N.
   6. Schröder, K.-P.

   2017 - Forschungsinformationssystem der UHH - frei zugänglich
3. Fifteen years in the high-energy life of the solar-type star HD 81809: XMM-Newton observations of a stellar activity cycle

   1. Orlando, S.
   2. Favata, F.
   3. Micela, G.
   4. Sciortino, S.
   5. Maggio, A.
   6. Schmitt, Jürgen
   7. Robrade, J.

   2017 - Forschungsinformationssystem der UHH
4. Study of the variability of Nova V5668 Sgr, based on high-resolution spectroscopic monitoring

   1. Jack, D.
   2. Robles Pérez, J.D.J.
   3. De Gennaro Aquino, I.
   4. Schröder, K.-P.
   5. Wolter, U.
   6. Eenens, P.
   7. Schmitt, Jürgen

   2017 - Forschungsinformationssystem der UHH
5. Further evidence for a sub-year magnetic chromospheric activity cycle and activity phase jumps in the planet host ? Boötis

   1. Schmitt, Jürgen
   2. Mittag, M.

   2017 - Forschungsinformationssystem der UHH
6. Coronal X-ray emission and planetary irradiation in HD 209458

   1. Czesla, Stefan
   2. Salz, Michael
   3. Schneider, P.C.
   4. Mittag, M.
   5. Schmitt, Jürgen

   2017 - Forschungsinformationssystem der UHH - frei zugänglich
7. Four-month chromospheric and coronal activity cycle in ? Boötis

   1. Mittag, M.
   2. Robrade, J.
   3. Schmitt, Jürgen
   4. Hempelmann, A.
   5. González-Pérez, J.N.
   6. Schröder, K.-P.

   2017 - Forschungsinformationssystem der UHH
8. The Ca II infrared triplet's performance as an activity indicator compared to Ca II H and K: Empirical relations to convert Ca II infrared triplet measurements to common activity indices

   1. Martin, J.
   2. Fuhrmeister, B.
   3. Mittag, M.
   4. Schmidt, T.O.B.
   5. Hempelmann, A.
   6. González-Pérez, J.N.
   7. Schmitt, Jürgen

   2017 - Forschungsinformationssystem der UHH - frei zugänglich
9. Carrington cycle 24: The solar chromospheric emission in a historical and stellar perspective

   1. Schröder, K.-P.
   2. Mittag, M.
   3. Schmitt, Jürgen
   4. Jack, D.
   5. Hempelmann, A.
   6. González-Pérez, J.N.

   2017 - Forschungsinformationssystem der UHH
10. High spectral resolution monitoring of Nova V339 Delphini with TIGRE (Corrigendum)

    1. De Gennaro Aquino, I.
    2. Schröder, K.-P.
    3. Mittag, M.
    4. Wolter, U.
    5. Jack, D.
    6. Eenens, P.
    7. González-Pérez, J.N.

    2016 - Forschungsinformationssystem der UHH - frei zugänglich
11. What do the Mt. Wilson stars tell us about solar activity?

    1. Schröder, K.-P.
    2. Mittag, M.
    3. Hempelmann, A.
    4. González-Pérez, J.N.
    5. Schmitt, Jürgen

    2013 - Forschungsinformationssystem der UHH
12. Ca II H+K fluxes from S-indices of large samples: A reliable and consistent conversion based on PHOENIX model atmospheres

    1. Mittag, M.
    2. Schmitt, Jürgen
    3. Schröder, K.-P.

    2013 - Forschungsinformationssystem der UHH